hypernym (electron gun IS A KIND OF .... relation)
the electrode that is the source of electrons in a cathode-ray tube or electron microscope; consists of a cathode that emits a stream of electrons and the electrostatic or electromagnetic apparatus that focuses it(noun.artifact)
a vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode and are focused or deflected before hitting a ph more..a vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode and are focused or deflected before hitting a phosphorescent screen(noun.artifact)
a microscope that is similar in purpose to a light microscope but achieves much greater resolving power by using a parallel beam of electrons to illum more..a microscope that is similar in purpose to a light microscope but achieves much greater resolving power by using a parallel beam of electrons to illuminate the object instead of a beam of light(noun.artifact)
